If the formation water in Guantao formation is used as a source of water injection, swelling preventing agent shall be added to the injected water to prevent formation damage from hydrated clayswell.
若将馆陶组地层水作为注入水水源，必须在注入水中加入防膨剂以防止由于粘土水化膨胀而造成的地层伤害。
2
Natural resources as mineral water, clay, swell soil, peaty soil and building sand are also quite rich in amount.
矿泉水、粘土、膨润土、泥炭土、建筑用砂等资源也都十分丰富。
3
The effect of molecular structure of polymer to anti-swell ability are studied by analysing clay stabilization capabilities investigated.